Director, Public Relations Office, Tokyo Regional Taxation Bureau (2001)
Chief Tax Inspector, Hiroshima Branch, National Tax Agency (2003)
Deputy Director, Investigation Division No.3, Tokyo Regional Taxation Bureau (2004)
Chief Tax Inspector, Minister’s Secretariat, National Tax Agency (2005)
Commissioner, Takamatsu Regional Taxation Bureau (2007)
Established Kamimura Tax Accounting Office (2008 – present)
Outside Auditor, Fujitomi Co., Ltd. (now Fujitomi Securities Co., Ltd.) (2012–2021)
Auditor, ADVANCE Inc. (2015 – present)
Outside Auditor, Yazaki Corporation (2015 – present)
Auditor, Taiyo Group Co., Ltd. and TSP Taiyo Co., Ltd. (2016 – present)
Outside Director (Audit & Supervisory Committee Member), Fujitomi Securities Co., Ltd. (2021 – present)